Here is a Lionel 6-18427 O Gauge Tie-Jector Operating Car #55.
It is self-powered and as this unit goes down the track it ejects ties every 3 inches or so for the track crew to come by and fix the ties.
Included with this are track trips that allow you to set where the tie ejecting mechanism starts and stops.
Die-cast trucks and operating couplers, metal wheels and axles.

This item has been graded per TCA standards C-8: Like New based on visual appearance. The wheels and rolling pickups show signs of moderate wear. The instruction manual is included. The original box is included. Please check the photos for a detailed look at this item. Stock photos have been used to show this item outside of the box. Overall condition is Like New.

Condition: Like New (C-8)
Operational Status: Functional
Original Box: Yes (P-7)

Manufacturer: Lionel
Model Number: 6-18427
Years Manufactured: 1995 – 1995
Road Name: **** No Road Name

Scale/Era: O Modern
Model Type: Motorized Units

The SKU for this item is 5966468.

Product Id: 11395273